Question about this mod guys. Only my 2nd attempt at modding so sorry for the noob question.
Ok I've drilled ok some stuff out of it. In the back of the tube it looks like theres a ring with 3 pieces of plastic coming out of it attaching itselfs to the tube. Do I remove that ring?
You don't have to. Those pieces are what originally supported the air restrictor. If you want to go for completion the remove it, but if it is going to be too much effort don't bother. You've already opened up airflow in the barrel by quite a lot.